
| APR | MAY | JUN | JUL | AUG | SEP | ||||||||||||||||||||||
| Week no. | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | |
| Site | Ind | ||||||||||||||||||||||||||
| Small Skipper | 74 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 16 | 14 | 8 | 18 | 2 | . | . | . | . | |||
| Large Skipper | 37 | . | . | . | . | . | . | . | . | 1 | 2 | 12 | 8 | 11 | 1 | 1 | . | . | . | . | . | . | . | . | |||
| Grizzled Skipper | 14 | . | . | . | . | . | 4 | 6 | 2 | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||
| Brimstone | 78 | 1 | 1 | 5 | 3 | . | . | 1 | 1 | . | . | . | 1 | . | . | . | 2 | . | 29 | . | 19 | 2 | 4 | 7 | |||
| Large White | 41 | . | . | . | . | . | 5 | . | 2 | 1 | 1 | 1 | 3 | . | 1 | 2 | 1 | 6 | 6 | 2 | 6 | . | 2 | . | |||
| Small White | 15 | . | . | . | . | 1 | 3 | . | . | . | . | . | . | . | . | 2 | 4 | 2 | . | . | . | . | . | . | |||
| Green-veined White | 20 | . | . | . | 2 | 1 | 2 | 4 | 1 | 4 | . | . | . | . | . | . | 1 | . | . | 1 | 1 | . | . | 2 | |||
| Orange Tip | 6 | . | . | 1 | 2 | 2 | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||
| Brown Hairstreak | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | |||
| Purple Hairstreak | 4 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 3 | . | . | . | . | . | |||
| Small Copper | 9 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 4 | 2 | 3 | . | |||
| Common Blue | 7 | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | 1 | 2 | . | 1 | 2 | . | |||
| Duke of Burgundy Fritillary | 2 | . | . | . | . | . | . | 1 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||
| White Admiral | 14 | . | . | . | . | . | . | . | . | . | . | . | 1 | 4 | . | 6 | . | . | . | . | . | . | . | . | |||
| Red Admiral | 11 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 2 | 2 | 2 | 4 | |||
| Painted Lady | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | |||
| Small Tortoiseshell | 4 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 1 | . | 2 | . | |||
| Peacock | 101 | . | 2 | 8 | 7 | 1 | . | . | . | . | . | . | . | . | . | . | 6 | 23 | 44 | 3 | 3 | 1 | 2 | . | |||
| Comma | 3 | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | |||
| Pearl-bordered Fritillary | 3 | . | . | . | . | . | . | . | 2 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||
| Silver-washed Fritillary | 12 | . | . | . | . | . | . | . | . | . | . | . | . | 3 | 1 | 2 | 3 | . | . | . | . | . | . | . | |||
| Marsh Fritillary | 1 | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | |||
| Speckled Wood | 153 | . | . | . | 4 | 1 | 1 | 1 | 1 | 3 | 2 | 5 | 11 | 8 | 2 | 1 | 3 | 9 | 11 | 1 | 23 | 24 | 26 | 14 | |||
| Wall Brown | 5 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 4 | |||
| Marbled White | 21 | . | . | . | . | . | . | . | . | . | . | . | 1 | 12 | 5 | 1 | 1 | . | . | . | . | . | . | . | |||
| Gatekeeper / Hedge Brown | 65 | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 9 | 16 | 5 | 15 | 3 | 3 | . | . | . | |||
| Meadow Brown | 227 | . | . | . | . | . | . | . | . | . | . | 2 | 31 | 51 | 40 | 43 | 17 | 5 | 7 | . | 1 | . | . | . | |||
| Small Heath | 6 | . | . | . | . | . | . | . | 2 | . | . | . | . | . | . | . | . | . | . | . | 4 | . | . | . | |||
| Ringlet | 291 | . | . | . | . | . | . | . | . | . | . | . | 28 | 117 | 56 | 45 | 15 | . | . | . | . | . | . | . | |||